STUDIES OF NOVEL WATER-SOLUBLE COLORED POLYESTERS CONTAINING AZO MOIETY

A series of water-soluble colored polyesters (polymeric dyes) were syn thesized by interfacial polycondensation reaction of terephthaloyl chl oride and various bisazodiols (monomeric dyes) that were derived from diarylidene cyclopentanone and diarylidene cyclohexanone by coupling w ith various diazonium salts of anthraquinone dyes containing the sodiu m salts of the sulfonic acid group. All the colored polyesters were ch aracterized by their elemental analysis, IR and UV-visible spectroscop y, viscometry, solubility, and TGA. Color and dyeability of the polyme ric dyes are discussed by comparing them with those of the correspondi ng monomeric dyes. The color fastness of the polymeric dyes show fair to very good fastness to Light and very good to excellent fastness to washing, rubbing, perspiration, and sublimation. (C) 1998 John Wiley & Sons, Inc.